Residents in Hillsdale and Branch counties who look to the sky may see a low-flying helicopter as it undertakes a high-tech mission to map the region’s hidden water resources.
Starting this week, the U.S. Geological Survey will fly over 16 Michigan counties to create 3D models of underground geology. According to a report from MLive, the helicopter will tow a large, 60-foot “hoop” about 100 feet above the ground. The device acts like an MRI for the Earth, using sensors to scan more than 1,000 feet beneath the surface.
For local residents, the study is vital for protecting the Michindoh Aquifer. This massive underground water system is the source of drinking water for nearly 400,000 people across nine counties in Michigan, Indiana, and Ohio.
The flights will follow grid patterns roughly one mile apart during daylight hours.
Scientists say the instruments are safe for people, pets, and livestock. However, pilots will avoid flying directly over homes or crowded areas. The data will help local leaders make better decisions about water use for homes, farming, and other potential users. Once the four-month study is finished, maps of the survey will be made available to the public for free.